108 EGR COOLER AND TUBING
Modification 2 – EGR Coolant
Return Tube Adapter and EGR
Coolant Hose
Removal of EGR Coolant Return Tube Adapter
and EGR Coolant Hose
Figure 126 EGR coolant return tube adapter and
EGR coolant hose
1. EGR coolant hose
2. Constant tension EGR hose clamp (2)
3. EGR cooler
4. EGR coolant return tube adapter
5. Bolt, M8 x 25 (in flange)
6. O-ring seal
1. Drain coolant.
2. Loosen two constant tension EGR hose clamps
and remove EGR coolant hose from EGR coolant
return tube adapter and EGR cooler.
3. Remove M8 x 25 EGR coolant return tube adapter
bolt and pull EGR coolant return tube adapter
straight out of the cylinder head. Discard O-ring.
Installation of EGR Coolant Return Tube Adapter
and EGR Coolant Hose
Figure 127 EGR cooler return tube adapter
1. Install a new O-ring onto new EGR cooler return
tube adapter.
CAUTION: To prevent engine damage, do not use
engine oil or any other petroleum based products
on EGR cooler return tube adapter O-ring. This
O-ring is not compatible with petroleum based
lubricants.
2. Using P-80 or equivalent, lubricate O-ring on
adapter.
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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